CN108672502B - Plate strip steel width control method and device and terminal equipment - Google Patents
Plate strip steel width control method and device and terminal equipment Download PDFInfo
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- CN108672502B CN108672502B CN201810731199.3A CN201810731199A CN108672502B CN 108672502 B CN108672502 B CN 108672502B CN 201810731199 A CN201810731199 A CN 201810731199A CN 108672502 B CN108672502 B CN 108672502B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 258
- 239000010959 steel Substances 0.000 title claims abstract description 258
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000003079 width control Methods 0.000 title claims description 42
- 230000008859 change Effects 0.000 claims abstract description 11
- 238000004590 computer program Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 238000005098 hot rolling Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 8
- 230000006870 function Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 229910052729 chemical element Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
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Abstract
The invention is suitable for the technical field of hot rolling of steel, and provides a method, a device and terminal equipment for controlling the width of plate and strip steel, wherein the method comprises the following steps: firstly, acquiring component information of a plate strip steel to be detected, a preset width value and an outlet temperature of a finishing mill; acquiring a temperature-width compensation curve corresponding to the component information according to the component information and the width compensation data set of the plate strip steel to be detected; obtaining a width compensation value of the strip steel of the plate to be detected according to the outlet temperature and a temperature-width compensation curve corresponding to the component information; and determining the width value of the strip steel to be detected at the outlet temperature according to the width compensation value of the strip steel to be detected and the preset width value. According to the invention, the component information of the plate strip steel to be detected is obtained, and the temperature-width compensation curve corresponding to the component information is obtained, so that the width value of the plate strip steel at the outlet temperature is obtained, the width deviation of the plate strip steel finished product caused by the temperature change of the plate strip steel is avoided, and the yield of the plate strip steel is improved.
Description
Technical Field
The invention belongs to the technical field of hot rolling of steel, and particularly relates to a method and a device for controlling the width of plate and strip steel and terminal equipment.
Background
The finished width precision of the hot-rolled strip steel is an important technical index, and for hot-rolled production, the quality of the width precision directly influences the yield of the strip steel; for downstream users, the utilization rate of raw materials is more directly influenced. When the width deviation is reduced by 1mm, the yield can be improved by about 0.1 percent according to the calculation of the width of the actual finished plate strip steel, so the high-precision width control technology can obviously improve the economic benefit.
The traditional method for controlling the width of the plate strip steel is generally that a width measuring instrument is installed at an outlet of a finishing mill, and the width of the plate strip steel is controlled to reach an expected width by detecting the width of the plate strip steel at the outlet of the finishing mill, however, the plate strip steel at the outlet of the finishing mill is in a high-temperature state, and the width of the plate strip steel cooled from the high-temperature state to a normal-temperature state changes, so that the width of a finally obtained plate strip steel finished product has deviation, and the yield of the plate strip steel is influenced.
Disclosure of Invention
In view of this, the embodiment of the invention provides a method, a device and a terminal device for measuring and controlling the width of a plate and strip steel, so as to solve the problems that the width of a plate and strip steel finished product is deviated and the precision of the width of the plate and strip steel is low in the prior art.
The first aspect of the embodiment of the invention provides a plate and strip steel width control method, which comprises the following steps:
acquiring component information of the plate strip steel to be detected, a preset width value and an outlet temperature of a finishing mill;
according to the component information and the width compensation data set of the plate band steel to be detected, acquiring a temperature-width compensation curve of the plate band steel corresponding to the component information, wherein the temperature-width compensation curve is a curve reflecting the relation between outlet temperature and a width compensation value, and the width compensation value is the difference value between the plate band steel width at the outlet temperature and the plate band steel width at a cooling state;
obtaining a width compensation value of the strip steel of the plate to be detected according to the outlet temperature and a temperature-width compensation curve corresponding to the component information;
and determining the width value of the plate band steel to be detected at the outlet temperature according to the width compensation value of the plate band steel to be detected and the preset width value, and controlling the width of the plate band steel to be detected according to the width value.
A second aspect of an embodiment of the present invention provides a plate and strip steel width control apparatus, including:
the information acquisition module is used for acquiring the component information of the plate strip steel to be detected, the preset width value and the outlet temperature of the finishing mill;
the system comprises a curve acquisition module, a data acquisition module and a data acquisition module, wherein the curve acquisition module is used for acquiring a temperature-width compensation curve of the plate strip steel corresponding to the component information according to the component information and a width compensation data set of the plate strip steel to be detected, the temperature-width compensation curve is a curve reflecting the relation between the outlet temperature and a width compensation value, and the width compensation value is the difference value between the plate strip steel width at the outlet temperature and the plate strip steel width at a cooling state;
the width compensation value acquisition module is used for acquiring a width compensation value of the strip steel of the plate to be detected according to the outlet temperature and a temperature-width compensation curve corresponding to the component information;
and the width control module is used for determining the width value of the plate strip steel to be detected at the outlet temperature according to the width compensation value of the plate strip steel to be detected and the preset width value, and controlling the width of the plate strip steel to be detected according to the width value.
A third aspect of the embodiments of the present invention provides a terminal device, which includes a memory, a processor, and a computer program stored in the memory and operable on the processor, and when the processor executes the computer program, the steps of the strip width control method described above are implemented.
A fourth aspect of the embodiments of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the strip width control method described above.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: the method comprises the steps of firstly, acquiring component information of the plate strip steel to be detected, a preset width value and outlet temperature of a finishing mill; according to the component information and the width compensation data set of the plate band steel to be detected, acquiring a temperature-width compensation curve of the plate band steel corresponding to the component information, wherein the temperature-width compensation curve is a curve reflecting the relation between outlet temperature and a width compensation value, and the width compensation value is the difference value between the plate band steel width at the outlet temperature and the plate band steel width at a cooling state; obtaining a width compensation value of the strip steel of the plate to be detected according to the outlet temperature and a temperature-width compensation curve corresponding to the component information; and determining the width value of the plate band steel to be detected at the outlet temperature according to the width compensation value of the plate band steel to be detected and the preset width value, and controlling the width of the plate band steel to be detected according to the width value. In the embodiment of the invention, because the widths of the plate strip steel with different component information have different amplitude along with the temperature change, the component information of the plate strip steel to be detected is obtained to obtain the temperature-width compensation curve corresponding to the component information, so that the width value of the plate strip steel at the outlet temperature of the finishing mill outlet is finally obtained, the width of the plate strip steel is more accurate, the width deviation of the plate strip steel finished product caused by the temperature change of the plate strip steel is avoided, and the yield of the plate strip steel is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic flow chart of an implementation of a method for controlling the width of a plate strip steel provided by an embodiment of the present invention;
FIG. 2 is a schematic flow chart of another implementation of a method for controlling the width of a strip steel provided by an embodiment of the present invention;
fig. 3 is a flowchart illustrating a specific implementation of step S202 in fig. 2 according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a plate and strip steel width control device provided by an embodiment of the invention;
fig. 5 is a schematic diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the above-described drawings are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Example 1:
fig. 1 shows an implementation process of a method for controlling a width of a plate strip steel according to an embodiment of the present invention, and the process is detailed as follows:
in S101, the component information, the preset width value and the outlet temperature of the finishing mill of the plate strip steel to be measured are obtained.
In this embodiment, the composition information is the chemical element information contained in the plate and strip steel, the composition information of the plate and strip steel may be presented in the form of a table, and in the case of the plate and strip steel containing vanadium, the composition information of the plate and strip steel containing vanadium may be represented by table 1:
TABLE 1
| Chemical elements | C | Si | Mn | P |
| Content (wt.) | 0.01-0.30 | 0.05-0.45 | 0.05-1.50 | 0.001-0.050 |
| Chemical composition | S | V | ||
| Content of ingredients | 0.001-0.050 | 0.001-0.500 |
In this embodiment, the preset width value is the width value of the plate strip steel expected by the operator. In the production process of the strip steel in the hot rolling mill, the width of the strip steel is different with the change of the temperature due to the difference of the component information, and the finished width of the strip steel is usually deviated from the width value in the high temperature state in the finishing mill, so that the outlet temperature of the finishing mill can be obtained in order to obtain the width value of the strip steel in the finishing mill, and the outlet temperature of the finishing mill is the outlet temperature of the finishing mill.
In S102, a temperature-width compensation curve of the strip steel corresponding to the component information is obtained according to the component information and the width compensation data set of the strip steel to be tested, the temperature-width compensation curve is a curve reflecting a relationship between an outlet temperature and a width compensation value, and the width compensation value is a difference between the strip steel width at the outlet temperature and the strip steel width at the cooling state.
In the present embodiment, the width compensation data set is a data set stored in advance for calculating the width of the strip at the outlet temperature, and the width compensation data set includes composition information of various strip and temperature-width compensation curves corresponding to the composition information. By acquiring the component information of the plate strip steel to be detected, the temperature-width compensation curve corresponding to the plate strip steel to be detected can be inquired from the width compensation data set. In this embodiment, the abscissa of the temperature-width compensation curve may be the temperature, and the ordinate may be the width compensation value of the strip steel, which is the difference between the width of the strip steel at the outlet temperature and the width of the strip steel in the cooled state.
In S103, a width compensation value of the strip steel of the plate to be detected is obtained according to the temperature-width compensation curve corresponding to the outlet temperature and the component information.
In this embodiment, when the temperature-width compensation curve of the plate strip steel to be measured is obtained, the width compensation value of the plate strip steel to be measured can be obtained according to the obtained outlet temperature of the plate strip steel to be measured.
In S104, determining the width value of the plate strip steel to be detected at the outlet temperature according to the width compensation value of the plate strip steel to be detected and the preset width value, and controlling the width of the plate strip steel to be detected according to the width value.
In this embodiment, the width compensation value is added to the preset width value to obtain the width value of the strip steel at the outlet temperature of the plate to be tested, and the width value is sent to the width control component, so that the width control component adjusts the width of the strip steel at the outlet temperature to the width value.
From the embodiment, the component information, the preset width value and the outlet temperature of the finishing mill of the plate strip steel to be measured are obtained firstly; according to the component information and the width compensation data set of the plate band steel to be detected, acquiring a temperature-width compensation curve of the plate band steel corresponding to the component information, wherein the temperature-width compensation curve is a curve reflecting the relation between outlet temperature and a width compensation value, and the width compensation value is the difference value between the plate band steel width at the outlet temperature and the plate band steel width at a cooling state; obtaining a width compensation value of the strip steel of the plate to be detected according to the outlet temperature and a temperature-width compensation curve corresponding to the component information; and determining the width value of the plate band steel to be detected at the outlet temperature according to the width compensation value of the plate band steel to be detected and the preset width value, and controlling the width of the plate band steel to be detected according to the width value. In the embodiment of the invention, because the widths of the plate strip steels with different component information have different amplitude along with the temperature change, the component information of the plate strip steel to be detected is obtained to obtain the temperature-width compensation curve corresponding to the component information, so that the width value of the plate strip steel at the outlet temperature of the finishing mill outlet is finally obtained, the width of the plate strip steel is more accurate, the width deviation of the plate strip steel finished product caused by the temperature change of the plate strip steel is avoided, and the yield of the plate strip steel is improved.
As shown in fig. 1, in an embodiment of the present invention, fig. 1 shows an implementation flow of controlling a width of a plate strip steel according to another embodiment of the present invention, before step S101, the embodiment of the present invention further includes:
in S201, sample component information of a plurality of sample plate strip steels is acquired, and the sample plate strip steels are classified according to the sample component information.
In this embodiment, the sample strip includes various strips with different component information, and the sample strips with the same component information can be classified into one type according to the component information of the sample strips.
In S202, temperature-width compensation curves corresponding to the same type of sample plate strip steel are obtained.
In this embodiment, the relationship between the temperature and the width compensation value of each sample plate strip steel in the same type is obtained through testing, the width compensation values of the same temperature of each sample plate strip steel in the same type are added and averaged to obtain the average width compensation value of the same temperature of the sample plate strip steel in the same type, then the average width compensation value corresponding to each temperature of the sample plate strip steel in the same type is obtained, and finally the temperature-width compensation curve corresponding to the sample plate strip steel in the same type is obtained through fitting.
In this embodiment, outliers in the width compensation values corresponding to the temperatures of the sample plate strip steel can be eliminated, so that the influence of error values on the final temperature-width compensation curve is reduced.
In S203, temperature-width compensation curves of the sample plate strip steels of each type are respectively obtained to obtain a width compensation data set, where the width compensation data set includes sample component information and temperature-width compensation curves corresponding to the sample plate strip steels.
In this embodiment, the temperature-width compensation curves of the sample plate strip of each type are obtained, respectively, so as to obtain the width compensation data set, and the width compensation data set is saved.
According to the embodiment, the width compensation data set is obtained by detecting and calculating the sample plate strip steel in advance, so that the plate strip steel to be detected can be conveniently and subsequently calculated and controlled in large batch, the plate strip steel width calculation time is saved, and the plate strip steel width control precision is improved.
As shown in fig. 3, in an embodiment of the present invention, a specific implementation process of step S202 in fig. 2 is detailed as follows:
in S301, a high-temperature width value and a cold-state width value corresponding to the same type of sample plate strip steel at each preset outlet temperature are obtained, and the cold-state width value is a width value of the sample plate strip steel after cooling.
In this embodiment, the preset outlet temperature is the set outlet temperature of the finishing mill, and may be set at intervals of 50 °, and the preset outlet temperatures are set to be 1000 °, 950 °, … …, 200 °, and the like, respectively.
In S302, a difference between a high-temperature width value and a cold-state width value corresponding to each preset outlet temperature of the same type of sample plate strip steel is calculated to obtain a temperature-width compensation curve of the same type of sample plate strip steel, where the cold-state width value is a width value in a cooling state.
In this embodiment, a high temperature width value and a cold width value corresponding to each preset outlet temperature of a sample plate strip steel are obtained first. And then obtaining corresponding width compensation values of the sample plate band steel at each preset outlet temperature, wherein the width compensation values are the difference values of the high-temperature width value and the cold-state width value, then sequentially obtaining the corresponding width compensation values of the sample plate band steel of the same type, calculating the average width compensation value of the sample plate band steel of the same type at the same temperature, and finally fitting to obtain the temperature-width compensation curve of the sample plate band steel of the same type.
In this embodiment, both the high temperature width value and the cold width value can be measured by a width tester.
Taking a specific application scenario as an example, as shown in table 2, table 2 shows the relationship between the strip width of a sample plate and the temperature variation.
TABLE 2
According to the embodiment, the width compensation values corresponding to different preset outlet temperatures can be obtained by obtaining the high-temperature width value and the cold-state width value of the same type of sample plate strip steel at the preset outlet temperature, so that the width compensation value of the plate strip steel to be detected is obtained according to the outlet temperature query of the plate strip steel to be detected, and the accuracy of the plate strip steel width control is improved.
In an embodiment of the present invention, a specific implementation process of step S104 in fig. 1 is detailed as follows:
in this embodiment, a width control signal is sent to the width control mechanism according to the width value at the outlet temperature, and the width control signal is used to instruct the width control mechanism to change the width of the strip steel to be measured.
In this embodiment, after the width of the plate strip steel to be measured is obtained, the width of the plate strip steel to be measured in the finishing mill is controlled by the width control mechanism, so as to obtain the plate strip steel finished product desired by the user.
In this embodiment, the width control signal includes a width value of the strip at the outlet temperature of the plate to be measured. And the control mechanism compares the width value of the temperature of the strip steel outlet of the plate to be detected with the real-time width of the outlet of the finishing mill so as to obtain a command of increasing or reducing the width of the strip steel of the plate to be detected.
From the embodiment, the width of the plate strip steel to be measured is controlled according to the calculated width value at the outlet temperature, so that the deviation between the width value of the cooled plate strip steel to be measured and the preset width value is reduced, the width of the plate strip steel to be measured is more accurate, and the yield of the plate strip steel finished product is further improved.
In an embodiment of the present invention, after the step S402, the embodiment of the present invention further includes:
in one embodiment, the actual width of the cooled strip steel plate to be measured is obtained, and the width compensation data set is updated according to the actual width of the cooled strip steel plate to be measured.
In the present embodiment, in order to improve the accuracy of the width compensation data set, the data of the width compensation data set needs to be updated from time to time. After sending a width control signal to the width control mechanism according to the width value at the outlet temperature, the hot rolling process of the plate strip steel to be measured can be performed drawing test, the actual width of the cooled plate strip steel to be measured is obtained, and the width compensation data set is updated according to the actual width of the cooled plate strip steel to be measured.
From the above embodiment, the data in the width compensation data set is more accurate by continuously updating the width compensation data set, so that the width of the obtained plate strip steel is more accurate, and the quality of the finished plate strip steel is further ensured.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Example 2:
as shown in fig. 4, an embodiment of the present invention provides a plate strip width control apparatus 100, which is used for executing the method steps in the embodiment corresponding to fig. 1, and includes:
the information acquisition module 110 is used for acquiring the component information of the plate strip steel to be detected, the preset width value and the outlet temperature of the finishing mill;
a curve obtaining module 120, configured to obtain a temperature-width compensation curve of the strip steel corresponding to the component information according to the component information and the width compensation data set of the strip steel to be tested, where the temperature-width compensation curve is a curve reflecting a relationship between an outlet temperature and a width compensation value, and the width compensation value is a difference between a strip steel width at the outlet temperature and a strip steel width at a cooling state;
the width compensation value obtaining module 130 is configured to obtain a width compensation value of the strip steel of the plate to be detected according to the temperature-width compensation curve corresponding to the outlet temperature and the component information;
and the width control module 140 is configured to determine a width value of the plate strip steel to be detected at the outlet temperature according to the width compensation value of the plate strip steel to be detected and a preset width value, and control the width of the plate strip steel to be detected according to the width value.
From the embodiment, the component information, the preset width value and the outlet temperature of the finishing mill of the plate strip steel to be measured are obtained firstly; according to the component information and the width compensation data set of the plate band steel to be detected, acquiring a temperature-width compensation curve of the plate band steel corresponding to the component information, wherein the temperature-width compensation curve is a curve reflecting the relation between outlet temperature and a width compensation value, and the width compensation value is the difference value between the plate band steel width at the outlet temperature and the plate band steel width at a cooling state; obtaining a width compensation value of the strip steel of the plate to be detected according to the outlet temperature and a temperature-width compensation curve corresponding to the component information; and determining the width value of the plate band steel to be detected at the outlet temperature according to the width compensation value of the plate band steel to be detected and the preset width value, and controlling the width of the plate band steel to be detected according to the width value. In the embodiment of the invention, because the widths of the plate strip steel with different component information have different amplitude along with the temperature change, the component information of the plate strip steel to be detected is obtained to obtain the temperature-width compensation curve corresponding to the component information, so that the width value of the plate strip steel at the outlet temperature of the finishing mill outlet is finally obtained, the width of the plate strip steel is more accurate, the width deviation of the plate strip steel finished product caused by the temperature change of the plate strip steel is avoided, and the yield of the plate strip steel is improved.
In an embodiment of the present invention, an embodiment of the present invention further includes a structure for performing the method steps in the embodiment corresponding to fig. 2, which includes:
the sample plate strip steel classification module is used for acquiring sample component information of a plurality of sample plate strip steels and classifying the sample plate strip steels according to the sample component information;
the temperature-width compensation curve acquisition module is used for acquiring temperature-width compensation curves corresponding to the same type of sample plate strip steel;
and the width compensation data set acquisition module is used for respectively acquiring the temperature-width compensation curves of the sample plate band steel of various types to obtain a width compensation data set, and the width compensation data set comprises sample component information and the temperature-width compensation curves corresponding to the sample plate band steel.
According to the embodiment, the width compensation data set is obtained by detecting the sample plate strip steel in advance, so that the plate strip steel to be detected can be conveniently and subsequently calculated and controlled in large batch, and the calculation time of the plate strip steel width is saved.
In an embodiment of the present invention, the temperature-width compensation curve obtaining module further includes a structure for executing the steps of the method in the embodiment corresponding to fig. 3, and the structure includes:
the width value acquisition unit is used for acquiring a high-temperature width value and a cold-state width value corresponding to the same type of sample plate strip steel at each preset outlet temperature, wherein the cold-state width value is the width value of the sample plate strip steel after being cooled;
and the temperature-width compensation curve acquisition unit is used for calculating the difference value between the high-temperature width value and the cold-state width value corresponding to the same type of sample plate strip steel at each preset outlet temperature to obtain the temperature-width compensation curve of the same type of sample plate strip steel, wherein the cold-state width value is the width value in a cooling state.
According to the embodiment, the width compensation values corresponding to different preset outlet temperatures can be obtained by obtaining the high-temperature width value and the cold-state width value of the same type of sample plate strip steel at the preset outlet temperature, so that the width compensation value of the plate strip steel to be detected can be inquired according to the outlet temperature of the plate strip steel to be detected, and the accuracy of controlling the width of the plate strip steel is improved.
In one embodiment of the present invention, the width control module in fig. 4 further comprises:
and the width control unit is used for sending a width control signal to the width control mechanism according to the width value of the outlet temperature, and the width control signal is used for indicating the width control mechanism to change the width of the plate strip steel to be detected.
From the above embodiment, the width of the plate strip steel to be measured is controlled according to the calculated width value at the outlet temperature, so that the deviation between the width value of the cooled plate strip steel to be measured and the preset width value can be reduced, the width of the plate strip steel to be measured is more accurate, and the yield of the plate strip steel finished product is further improved.
In an embodiment of the present invention, the apparatus 100 for controlling a width of a strip steel provided by an embodiment of the present invention further includes:
and the data set updating module is used for acquiring the actual width of the cooled plate strip steel to be detected and updating the width compensation data set according to the actual width of the cooled plate strip steel to be detected.
From the above embodiment, the data in the width compensation data set is more accurate by continuously updating the width compensation data set, so that the width of the obtained strip steel is more accurate.
In one embodiment, the strip width control apparatus 100 further includes other functional modules/units for implementing the method steps in the embodiments of embodiment 1.
Example 3:
the embodiment of the present invention further provides a terminal device 5, which includes a memory 51, a processor 50, and a computer program 52 stored in the memory 51 and operable on the processor 50, where when the processor 50 executes the computer program 52, the steps in each embodiment described in embodiment 1, for example, steps S101 to S104 shown in fig. 1, are implemented. Alternatively, the processor 50, when executing the computer program 52, implements the functions of the respective modules in the respective device embodiments as described in embodiment 2, for example, the functions of the modules 110 to 140 shown in fig. 5.
The terminal device 5 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device 5 may include, but is not limited to, a processor 50 and a memory 51. For example, the terminal device 5 may further include an input/output device, a network access device, a bus, and the like.
The Processor 50 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor 50 may be any conventional processor 50 or the like.
The memory 51 may be an internal storage unit of the terminal device 5, such as a hard disk or a memory of the terminal device 5. The memory 51 may also be an external storage device of the terminal device 5, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 5. Further, the memory 51 may also include both an internal storage unit of the terminal device 5 and an external storage device. The memory 51 is used for storing the computer program 52 and other programs and data required by the terminal device 5. The memory 51 may also be used to temporarily store data that has been output or is to be output.
Example 4:
an embodiment of the present invention further provides a computer-readable storage medium, in which a computer program 52 is stored, and when being executed by the processor 50, the computer program 52 implements the steps in the embodiments described in embodiment 1, such as step S101 to step S104 shown in fig. 1. Alternatively, the computer program 52 implements the functions of the respective modules in the respective apparatus embodiments as described in embodiment 2, for example, the functions of the modules 110 to 140 shown in fig. 5, when executed by the processor 50.
The computer program 52 may be stored in a computer readable storage medium, and when executed by the processor 50, the computer program 52 may implement the steps of the above-described method embodiments. Wherein the computer program 52 comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs.
The modules or units in the system of the embodiment of the invention can be combined, divided and deleted according to actual needs.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A method for controlling the width of plate strip steel is characterized by comprising the following steps:
acquiring component information of the plate strip steel to be detected, a preset width value and an outlet temperature of a finishing mill;
according to the component information and the width compensation data set of the plate band steel to be detected, acquiring a temperature-width compensation curve of the plate band steel corresponding to the component information, wherein the width compensation data set comprises: the temperature-width compensation curve is a curve reflecting the relation between the outlet temperature and a width compensation value, and the width compensation value is the difference value between the width of the strip steel at the outlet temperature and the width of the strip steel at the cooling state;
obtaining a width compensation value of the strip steel of the plate to be detected according to the outlet temperature and a temperature-width compensation curve corresponding to the component information;
and determining the width value of the plate band steel to be detected at the outlet temperature according to the width compensation value of the plate band steel to be detected and the preset width value, and controlling the width of the plate band steel to be detected according to the width value.
2. The method for controlling the width of the plate strip steel as claimed in claim 1, wherein before the obtaining of the composition information of the plate strip steel to be measured, the preset width value and the outlet temperature of the finishing mill, the method further comprises:
obtaining sample component information of a plurality of sample plate strip steels, and classifying the sample plate strip steels according to the sample component information;
obtaining temperature-width compensation curves corresponding to the same type of sample plate strip steel;
and respectively obtaining the temperature-width compensation curves of the sample plate band steel of various types to obtain the width compensation data set, wherein the width compensation data set comprises the sample component information and the temperature-width compensation curves of the corresponding sample plate band steel.
3. The method for controlling the width of the plate strip steel as claimed in claim 2, wherein the step of obtaining the temperature-width compensation curve corresponding to the sample plate strip steel of the same type comprises the following steps:
obtaining a high-temperature width value and a cold-state width value corresponding to the same type of sample plate strip steel at each preset outlet temperature, wherein the cold-state width value is the width value of the sample plate strip steel after being cooled;
and calculating the difference value between the high-temperature width value and the cold-state width value corresponding to the same type of sample plate strip steel at each preset outlet temperature to obtain the temperature-width compensation curve of the same type of sample plate strip steel, wherein the cold-state width value is the width value in a cooling state.
4. The plate strip steel width control method of any one of claims 1 to 3, wherein the controlling the width of the plate strip steel to be tested according to the width value comprises:
and sending a width control signal to a width control mechanism according to the width value at the outlet temperature, wherein the width control signal is used for indicating the width control mechanism to change the width of the plate strip steel to be detected.
5. The plate strip width control method of claim 4, further comprising:
and acquiring the actual width of the cooled plate strip steel to be detected, and updating the width compensation data set according to the actual width of the cooled plate strip steel to be detected.
6. A plate strip steel width control device is characterized by comprising:
the information acquisition module is used for acquiring the component information of the plate strip steel to be detected, the preset width value and the outlet temperature of the finishing mill;
the curve acquisition module is used for acquiring a temperature-width compensation curve of the plate strip steel corresponding to the component information according to the component information and the width compensation data set of the plate strip steel to be detected, wherein the width compensation data set comprises: the temperature-width compensation curve is a curve reflecting the relation between the outlet temperature and a width compensation value, and the width compensation value is the difference value between the width of the strip steel at the outlet temperature and the width of the strip steel at the cooling state;
the width compensation value acquisition module is used for acquiring a width compensation value of the strip steel of the plate to be detected according to the outlet temperature and a temperature-width compensation curve corresponding to the component information;
and the width control module is used for determining the width value of the plate strip steel to be detected at the outlet temperature according to the width compensation value of the plate strip steel to be detected and the preset width value, and controlling the width of the plate strip steel to be detected according to the width value.
7. The plate strip width control device as claimed in claim 6, further comprising:
the sample plate strip steel classification module is used for acquiring sample component information of a plurality of sample plate strip steels and classifying the sample plate strip steels according to the sample component information;
the temperature-width compensation curve acquisition module is used for acquiring temperature-width compensation curves corresponding to the same type of sample plate strip steel;
and the width compensation data set acquisition module is used for respectively acquiring temperature-width compensation curves of various types of sample plate strip steels to obtain the width compensation data set, and the width compensation data set comprises the sample component information and the temperature-width compensation curves of the corresponding sample plate strip steels.
8. The plate strip width control device of claim 7, wherein the temperature-width compensation curve obtaining module comprises:
the width value acquisition unit is used for acquiring a high-temperature width value and a cold-state width value corresponding to the same type of sample plate strip steel at each preset outlet temperature, wherein the cold-state width value is the width value of the sample plate strip steel after being cooled;
and the temperature-width compensation curve acquisition unit is used for calculating the difference value between the high-temperature width value and the cold-state width value corresponding to the same type of sample plate strip steel at each preset outlet temperature to obtain the temperature-width compensation curve of the same type of sample plate strip steel, wherein the cold-state width value is the width value in a cooling state.
9. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the strip width control method according to any one of claims 1 to 5 when executing the computer program.
10. A computer-readable storage medium storing a computer program, wherein the computer program is executed by a processor to implement the steps of the strip width control method according to any one of claims 1 to 5.
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| CN201810731199.3A CN108672502B (en) | 2018-07-05 | 2018-07-05 | Plate strip steel width control method and device and terminal equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810731199.3A CN108672502B (en) | 2018-07-05 | 2018-07-05 | Plate strip steel width control method and device and terminal equipment |
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| CN108672502B true CN108672502B (en) | 2020-01-07 |
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| CN112974543B (en) * | 2019-12-12 | 2022-09-09 | 上海梅山钢铁股份有限公司 | Method for optimizing ship-shaped curve of hot-rolled thin strip steel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08300024A (en) * | 1995-04-27 | 1996-11-19 | Sumitomo Metal Ind Ltd | Method for controlling plate width in hot rolling |
| JP3883086B2 (en) * | 1997-11-04 | 2007-02-21 | 新日本製鐵株式会社 | Correction method of sheet width change prediction formula and sheet width control method in hot rolling |
| KR101246313B1 (en) * | 2011-01-28 | 2013-03-21 | 현대제철 주식회사 | Rolling control method using temperature compensation |
| KR101298763B1 (en) * | 2011-06-29 | 2013-08-21 | 현대제철 주식회사 | System for measuring slab size |
| CN103170508B (en) * | 2011-12-21 | 2014-11-26 | 上海梅山钢铁股份有限公司 | Method for controlling width of hot rolling strip steel |
| CN103658196B (en) * | 2012-09-21 | 2016-02-24 | 宁波宝新不锈钢有限公司 | A kind of method improving stainless steel cold rolling mill Thickness sensitivity precision |
| CN106540968B (en) * | 2016-06-16 | 2019-03-01 | 中冶赛迪工程技术股份有限公司 | The compensation method of cold rolled sheet shape measured value and device |
| CN106334715B (en) * | 2016-08-26 | 2018-09-18 | 首钢京唐钢铁联合有限责任公司 | Method for improving control precision of strip steel width |
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